Home / 1,683.18-2,322.96-1,020.50

Finding the Fourth Proportional to 1,683.18, 2,322.96 and 1,020.50

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Solution

The fourth proportional to 1,683.18, 2,322.96 and 1,020.50 is: 1,408.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.18 : 2,322.96 = 1,020.50 : x
  2. Step 2: Convert to fraction form
    1,683.18/2,322.96 = 1,020.50/x
  3. Step 3: Cross multiply
    1,683.18x = 2,322.96 × 1,020.50
  4. Step 4: Simplify right side
    1,683.18x = 2,370,575.58
  5. Step 5: Solve for x
    x = 2,370,575.58/1,683.18
  6. Step 6: Final answer
    x = 1,408.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.